Car dumper



May 3,1927.

1,627,375 A. F. CASE,

CAR DUMPER Filed May 13. 1925 2 Sheets-Sheet 1 May a, 1927; 1,627,375

A: F? CASE CAR DUMPER Filed May 15, 1925 ZSheets-Sheet 2 Patented May 3, 1927.

UNITED sTATEs PATENT OFFICE.

ARTHUR F. CASE, OF CLEVELAND, OHIO, ASSIGNOR THE WELLMAN-SEAVERMOR- GAN COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

can BUMPER.

Application filed May 13, 1925. Serial No. 29,911.

necessary, in order to free the coal from the car, to provide thawing sheds, where the cars are allowed to stand for a time suiticient to loosen the coal from the sides of the car with the result that the cars are often introduced into the car dumper with only a small layer of unfrozen coal around the shell plates of the car. The inside of the coal mass may be frozen solid and if such masses are allowed to drop bodily into the pits or bins, there is great danger of serious damage to the pit or bin structure.

The present invention provides means in. connection with the damper structure which will act to break up lumps of excessive size during the dumping operation andwhich will retain any lumps larger than a predetermined size which are not brokenup.

\Vitlr the above and other objects in view the invention may be, said to comprise the device as illustrated in the accompanying drawings hereinafter described and particu larly set forth in the appended claims, together with such variations and modifications thereof aswill be. apparent to one skilled in the art to which the invention appertains. r

Reference should be had to the accompanying drawings forming a part of this specification in which Fig. l is a top plan view of a car .dumper embodying the invention;.Fig, 2 is an end elevation of a dumper; Fig. 3 is a fragmentary section in a plane transverse to the axis of the damper through the outer edge portion of the apron, oneof the posts of the rack being shown in side elevation; and 4t is a fragmentary plan view showing a portion of the apron and one of the posts secured thereto.

Referring to the accompanying drawings, the numeral 1 designates the revolving cradle of a car dumper, the cradle being substantially cylindrial in form, and rotatably'mounted upon a suitable support 2. The cradle is provided with a car receiving space 3 on the interior thereof which extends. from one end of the cradle to the other and in which, there is a track section l adapted to be aligned with. therailway tracks over which the cars are run. to. and from the damper... Suitable means suchas the clampingarms 5, shown in Fig. 1, are provided for holding the railway carsupon the trackway 4:v during the dumping operation, and one of the vertical sides of the car receiving space 3 of the cradle is in the form of a solid wall or apron 6 which extends beyond the upper edge of the car and to the periphery of the cradle. In the dumping operation, the cradle is. turned through an angle somewhat lessthan .180 degrees, tippingthe car sufficiently to cause the material to be discharged therefrom, the projecting portion of the apron 6 acting as a chute over which the material flows as it falls from the car.

, The car dumper above described is old and well-known, the present invention consisting of added elements for breaking up the material being discharged and for preventing the discharge of large lumps. Adjacent the outer edge thereof, the apron 6 has fixed thereto, inwardly projecting posts 7 which are regularly spaced through the length of the apronand between which the material must pass as it is discharged from the car .over the. apron.

Each of the posts 7 consists of a body portion 8 of channel shapeand side plates 9, which are attached to the flanges of the channel and extend inwardly. The portions ofthe side plate 9, which project inwardly from the channel 8, converge. to a point forming a V-shaped inner edge, against which the material falls as it is dis charged from the car. The posts 7 are attached to the apron 6 by means of angle bars 10 which have one flange attached to the plate and theother flange attached to .the side of the post, the bars 10 being bent to fit against the tapering sides of the post and having parallel, portions extending inwardly beyond the inner-edges of the posts. The post 7 may be braced by triangular gusset plates 11 which are secured between the inner edges of the side plates 9 and between the inwardly projecting fianges of the angle bars 10. An additional brace 12 may be provided for each post upon the outer side of the apron.

In the operation of the dumper the cradle is turned to bring the car to dumping position, the apron, during discharge of material, being substantially in the position shown in dotted lines in Fig. 2. If the material in the cars is badly i rozen, the large masses of frozen material drop from the car against the sharp inner edges of the post 7 and against the edge of the plate 11 which will ordinarily cause the lumps or masses of material to be broken up suiiiciently to permit the material to pass between the spaced posts 7 of the racx. In the event that there are any large lumps or masses of material which are not broken up they will be retained upon the apron by the posts 7. If any such lumps or masses of material are retained the cradle may be turned back toward upright position sufficiently to bring the apron into substantially horizontal position so that workmen may stand upon the apron and with suitable tools or machinery, break up such lumps or masses or material into sizes su'liiciently small to permit their passage between the posts. After the lumps or masses of material have been so broken up the cradle may be again turned to dumping position to discharge the material from the apron.

Having thus described my invention, I claim:

1. A rotatabl y supported car dumping cradle having means for holding a car thereon, an impert'orate apron carried by the cradle over which the material is discharged trom the car when the cradle is turned to dump the car, and means carried by the apron at the discharge end thereof for retaining thereon lumps of material which are larger than a predetermined size.

2. A rotatably supported car dumping cradle having means for holding a car thereon, a substantially fiat apron carried by the cradle over which the material is discharged from the car when the cradle is turned to dump the car, and a rack carried by the apron and projecting therefrom on the side over which the material passes, said rack comprising spaced bars adapted to retain on the apron lumps of excessive size.

3. A. rotatably supported ear dumping cradle having means for holding a car thereon, a substantially flat apron carried by the cradle over which the material is discharged from the car when the cradle is turned to dump the car, and a rack carried by the dumper comprising spaced posts projecting from the side of the apron over which the material passes.

4:. A rotatably supported car dumping cradle having means for holding a car thereon, an apron carried by the cradle over which the material is discharged from the car when the cradle is turned to dump the car, and a rack carried by the dumper comprising spaced posts projecting from the side of the apron over which the material passes, said posts having side walls converging inwardly.

5. A rotatably supported car dumping cradle having a trackway to receive a car and means for holding a car thereon, a substantially flat apron fixed to the cradle and extending alongside the top of a car in the cradle, said apron forming a chute over which the material spilled from the car slides when the cradle is turned to dump the car, and spaced posts projecting from the inner side of the apron between which the material must pass as it is discharged over the apron.

6. A rotatably supported car dumping cradle having a tracliway to receive a car and means for holding a car thereon, an apron fixed to the cradle and extending alongside the top of a car in the cradle, said apron forming a chute over which the material spilled from the car slides when the cradle is turned to dump the car, and spaced posts projecting from the .inner side of the apron between. which the material must pass as it discharged over the apron, said posts being disposed perpelidicular to the plane 01' the apron and having inwardly converging sides.

7. A rotatably supported car dumping cradle having a traclnvay to receive a car and means for holding a car thereon, an apron lixcd to the cradle and extending alongside the top of a car in the cradle, said apron forming a chute over which the material spilled from the car slides when the cradle is turned to dump the car, spaced posts projecting from the inner side ol' the apron between which the material must pass as it is discharged over the apron, said posts being disposed in planes perpendicular to the plane of the apron and having inwardly converging sides, and triangular gusset plates secured to the inner edges of the posts and to the apron and extending inwardly from the posts.

In testimony whereof, I hereunto ailix my signature.

ARTHUR F. CASE. 

